/*
 * jPOS Project [http://jpos.org]
 * Copyright (C) 2000-2015 Alejandro P. Revilla
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.jpos.core;


import java.util.Set;

/**
 * @author apr@cs.com.uy
 * @version $Id$
 * @since jPOS 1.1
 * <p/>
 * CardAgents relies on a Configuration object to provide
 * runtime configuration parameters such as merchant number, etc.
 */
public interface Configuration {
	String get(String propertyName);

	/**
	 * @param propertyName ditto
	 * @return all properties with a given name (or a zero length string)
	 */
	String[] getAll(String propertyName);

	int[] getInts(String propertyName);

	long[] getLongs(String propertyName);

	double[] getDoubles(String propertyName);

	boolean[] getBooleans(String propertyName);

	String get(String propertyName, String defaultValue);

	int getInt(String propertyName);

	int getInt(String propertyName, int defaultValue);

	long getLong(String propertyName);

	long getLong(String propertyName, long defaultValue);

	double getDouble(String propertyName);

	double getDouble(String propertyName, double defaultValue);

	boolean getBoolean(String propertyName);

	boolean getBoolean(String propertyName, boolean defaultValue);

	/**
	 * @param name  the Property name
	 * @param value typically a String, but could be a String[] too
	 */
	void put(String name, Object value);

	Set<String> keySet();
}
